How Can I Import a Go Library from a Private Git Repository on a Non-Default Port?

Specifying Ports in Go Remote Import Paths

Problem

You have a private Git repository hosted on a non-default HTTP port (e.g., 6655) and need to import a library from that repository into your Go project. Attempting to do so directly using the syntax:

import "internal-git.corporate-domain.com:6655/~myuser/golang-lib.git"

results in an error indicating an invalid import path.

Solution A: Using a Go Module Proxy

Go modules support the use of a proxy to retrieve packages from private or non-publicly accessible repositories. To use this approach, follow these steps:

1. Set up a proxy: Choose a suitable proxy server, such as Goproxy or Artifactory.
2. Configure Go to use the proxy: Set the GOPROXY environment variable to point to the proxy server address. For example:

export GOPROXY=http://myproxy.example.com:8080

3. Import the library: You can now import the library from the private repository using the following syntax:

import "internal-git.corporate-domain.com/myuser/golang-lib"

Solution B: Modifying Git Configuration

Another option is to modify your .gitconfig file to handle non-default ports:

1. Open your .gitconfig file (located in your user's home directory).
2. Add the following section to the file:

[url "git://[email protected]:6655"]
  insteadOf = git://internal-git.corporate-domain.com

This associates the non-default port with the internal Git repository URL.

3. Restart your terminal or IDE to apply the changes.
4. You can now import the library using the original syntax:

import "internal-git.corporate-domain.com:6655/~myuser/golang-lib.git"

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